Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Option Activity (Detail)

v3.8.0.1
Stockholders' Equity - Stock Option Activity (Detail) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2017
Aug. 31, 2016
Nov. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted 22,500 35,000 22,500 204,729  
Service-Based Vesting Condition Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Outstanding at November 30, 2016     1,142,010    
Granted     22,500    
Exercised     (26,781)    
Expired/forfeited     (7,500)    
Outstanding at August 31, 2017 1,130,229   1,130,229   1,142,010
Exercisable at August 31, 2017 1,044,697   1,044,697    
Outstanding at November 30, 2016, Weighted Average Exercise Price     $ 2.36    
Granted, Weighted Average Exercise Price     7.00    
Exercised, Weighted Average Exercise Price     1.92    
Expired/forfeited, Weighted Average Exercise Price     1.66    
Outstanding at August 31, 2017, Weighted Average Exercise Price $ 2.47   2.47   $ 2.36
Exercisable at August 31, 2017, Weighted Average Exercise Price $ 2.34   $ 2.34    
Outstanding at August 31, 2017 Weighted Average Remaining Contractual Term (Years)     4 years 4 months 28 days   4 years 11 months 26 days
Exercisable at August 31, 2017 Weighted Average Remaining Contractual Term (Years)     4 years 1 month 13 days    
Outstanding at November 30, 2016     $ 2,157,112    
Granted     0    
Exercised     78,149    
Expired/forfeited     38,150    
Outstanding at August 31, 2017 $ 4,844,612   4,844,612   $ 2,157,112
Exercisable at August 31, 2017 $ 4,610,775   $ 4,610,775